<?php 

class MCrypt
{
   private $iv = 'fedcba9876543210'; #Same as in JAVA
   private $key = '1122334455667788'; #Same as in JAVA
   
   function __construct()
   {
   }
   
   function encrypt($str) {
   
      //$key = $this->hex2bin($key);    
      $iv = $this->iv;
      
      $td = mcrypt_module_open('rijndael-128', '', 'cbc', $iv);
      
      mcrypt_generic_init($td, $this->key, $iv);
      $encrypted = mcrypt_generic($td, $str);
      
      mcrypt_generic_deinit($td);
      mcrypt_module_close($td);
      
      return bin2hex($encrypted);
   }
   
   function decrypt($code) {
      //$key = $this->hex2bin($key);
      $code = $this->hex2bin($code);
      $iv = $this->iv;
      
      $td = mcrypt_module_open('rijndael-128', '', 'cbc', $iv);
      
      mcrypt_generic_init($td, $this->key, $iv);
      $decrypted = mdecrypt_generic($td, $code);
      
      mcrypt_generic_deinit($td);
      mcrypt_module_close($td);
      
      return utf8_encode(trim($decrypted));
   }
   
   protected function hex2bin($hexdata) {
      $bindata = '';
      
      for ($i = 0; $i < strlen($hexdata); $i += 2) {
            $bindata .= chr(hexdec(substr($hexdata, $i, 2)));
      }
      
      return $bindata;
   }

}